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30228143188 = 2217923421639
BaseRepresentation
bin11100001001101111…
…001101110001010100
32220000122120202222211
4130021233031301110
5443401401040223
621515302003204
72120036656225
oct341157156124
986018522884
1030228143188
1111901aa9421
125a37416504
132b09724179
14166a87524c
15bbdb91d0d
hex709bcdc54

30228143188 has 12 divisors (see below), whose sum is σ = 52902327520. Its totient is φ = 15113192472.

The previous prime is 30228143161. The next prime is 30228143203. The reversal of 30228143188 is 88134182203.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30228143188.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139128 + ... + 282511.

Almost surely, 230228143188 is an apocalyptic number.

It is an amenable number.

30228143188 is a deficient number, since it is larger than the sum of its proper divisors (22674184332).

30228143188 is a wasteful number, since it uses less digits than its factorization.

30228143188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439566 (or 439564 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 30228143188 in words is "thirty billion, two hundred twenty-eight million, one hundred forty-three thousand, one hundred eighty-eight".

Divisors: 1 2 4 17923 35846 71692 421639 843278 1686556 7557035797 15114071594 30228143188